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Algebra basics

Course: Algebra basics > Unit 5

Lesson 2: Elimination method for systems of equations
Math
Algebra basics
Systems of equations
Elimination method for systems of equations
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Systems of equations with elimination challenge

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Problem

Solve the system of equations.
−7x−10y=45−3x−5y=25
x=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
y=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
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